Industrial incinerator



May 24, 1932.

R. W. KRENZ INDUSTRIAL INCINERATCR Filed July 24, -1929 mumnmunmnnununr KWAM atto: @reqs Patented May 24, 1932 aan res Parresy REINHOLD W. KRENZ, OF TOLEDO, OHIO INDUSTRIAL INCINERATOR Application led July 24,

This invention relates to an incinerator adapted to be used in industrial plants, produce markers, warehouses, or the like, or by small municipalities, for disposing of refuse.

@ne object of the invention is to provide an improved arrangement for utilizing the heat generated by the burning of wood scraps, waste paper, and other highly combustible waste material, for drying and igniting such other refuse as contains too large a percentage of water or other non-combustible material to support combustion of itself.

Another object of the invention is to provide improved and economical means for completely oxidizing the smoke and noxious` fumes, which are evolved from the heated and partially burned refuse and which would otherwise escape through the chimney into the atmosphere.

The invention consists further in various novel details of construction and combinations of elements, the purpose of which will be more particularly explained in the following detailed description which is to be read in connection with the accompanying drawings illustrating the same.

In the drawings:

Figure 1 is a sectional view taken substantially on the line 1-1 of Figure 2.

Figure 2 is a side view of the invention, parts being shown in elevation and other parts in section.

As illustrated in the drawings, the outer wall 5 of the incinerator may be constructed of masonry or other suitable fire resistant material, and encloses fire chambers 6 and 7 which are separated by a partition 8. Each of these chambers is provided with suitable grate bars 9 and one or both chambers may have gas burners 10 arranged between and a short distance above the grate bars, to be used in starting the combustion of the refuse when it is too wet to burn readily.

Since incinerators of this kind are usually of large capacity, it is preferred to provide each chamber with a feed door 1l which is mounted for vertical sliding movement be- 5) tween guide rails 12. The upper edge of the 1929. Serial No. 380,570.

door may be attached to -cables 13,` which pass over sheaves 14 and support counterweights 15. An operating ,cable 16 may also be -connected to the door and arrangedto travel over sheaves 17 to a windlass 18 for Each re chamber is provided at its bottom. ,Y

with an ash door 20. u

The rear re chamber 7 is intended particularly for wet refuse, and the more easily combustible material, like shavings andpapers, may be burned in the chamber 6, and the heatgenerated therefrom may be used for vdrying and igniting the material in the chamber 7 A comparatively large draft opening'21 is formed in the upper partor" partit-ion 8 and below this are smaller openings 22 to permit the heat from the chamber 6 to reach the various parts of the chamber 7. Another' rather large opening 23 is formed near the bottom ofpartition 8 so that a direct draft may be obtained through the chamber 7 when this is permitted by the lchar` 'n acter of thematerial within. the same.

The chamber 7 is located some distance in front of a chimney 24 and is connected therewith by a combustion chamber formed with a series'of baflles 25having` arched openings 26 located alternately near the top and the bottom. The draft therefore passes from the chamber 7 by a tortuous passageway through 'the successive openings 26 and is finally discharged into the chimney through an open# 8 ing 27 at the base thereof. The first baille 25, however, is formed with a small opening 28 to permit a limited draft from the bottom of the chamber 7 when the upper part of the chamber is clogged with refuse.

The burning refuse, with the aid of the gas from the burners 10 or other fuel, very soon heats the baffles 25 to an extremely high temperature, but at the same time some of the refuse may smoulder and evolve a great deal of smoke or noxious fumes. Doors 29 are therefore provided between the baffles 25 for admitting air into the combustion chamber. This air, mixing with the smoke and fumes as they come in contact with the white hot bales, will, if properly regulated, completely oXidize the same and the products of combustion will be discharged from the chimney without smoke or bad odors. The

opening of each of the doors 29 may be ad- A justed experimentally until the desired result is obtained.

In addition to the door 11, each chamber 6 and 7 may be provided at its top with a manhole cover 30. e

In case it is desired toy use otherr fuel at times, instead of gas, a Dutch oven 31 is provided at the front end of the incinerator so. that it communicates with the lower part of the chamber 6 through an opening 32. This Dutch oven is provided with the usual grate 33 and with fuel and ash doors 34Cy and 35 respectively. yThis oven may be used to burn coal or other fuel.

The shape and arrangement of the various chambers and the construction ofthe various parts associated therewith may be consider-r ably modified without any material' departure from the principles upon which the in.-

-vention is based. It is my intention there- K fore, to include all such modifications within the scope of the appended claim.

What I claim is:

In an incinerator, a` front chamber for receiving dry and highly combustible refuse material, a second chamber in rear of said front chamber for receiving other refuse material, a wall between said chambers having comparatively large draft openings therethrough at the top and bottom and smaller intermediate openings, a combustion chamber in rear of said second chamber and having a comparatively large inlet therefrom near the top and a smaller inlet near the bottom, baiiies in said combustionv chamber and a chimney flue leading from said combustion chamber.

In testimony whereof I have hereunto signed my name to this specification.

. REINHOLD W. KRENZ. 

